2500481 has 4 divisors (see below), whose sum is σ = 2506500. Its totient is φ = 2494464.

The previous prime is 2500441. The next prime is 2500523. The reversal of 2500481 is 1840052.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 960400 + 1540081 = 980^2 + 1241^2 .

It is a cyclic number.

It is not a de Polignac number, because 2500481 - 2⁶ = 2500417 is a prime.

It is a super-2 number, since 2×2500481² = 12504810462722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2500441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2336 + ... + 3233.

It is an arithmetic number, because the mean of its divisors is an integer number (626625).

2^2500481 is an apocalyptic number.

It is an amenable number.

2500481 is a deficient number, since it is larger than the sum of its proper divisors (6019).

2500481 is an equidigital number, since it uses as much as digits as its factorization.

2500481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6018.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 2500481 is about 1581.2909283241. The cubic root of 2500481 is about 135.7295845041.

The spelling of 2500481 in words is "two million, five hundred thousand, four hundred eighty-one".